Spectral performance of ECLAIRs flight detectors on SVOM mission

The hard X-ray imager of the Sino-French SVOM mission, called ECLAIRs, is dedicated to the detection and near real time localization of cosmic transients in the 4−150 keV energy range. ECLAIRs is a wide-field camera using a detection plane consisting of 6400 Schottky CdTe detectors, which makes images of the hard X-ray sky thanks to a coded mask. The detection plane is highly modular, being made of 200 hybrid modules of 4 x 8 pixels (called “XRDPIX”). Based on both an extremely low noise design and the use of innovative technologies, the ECLAIRs instrument will achieve the unprecedented low-energy threshold of 4 keV over the entire detection plane.